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Some interesting notes:
In those days TEXTING was accomplished with signal light, semaphore and MORSE CODE.
DIGITAL was the dashes and dots of MORSE CODE.
The CELL phone was the radio, squawk box and ship's intra-telephone system.
Our STEAM IRON was our body heat in our bunk bed.
Bluejackets' Manual 14th. Edition Printed 1950 (Highlights)